HealthA long-standing mystery about breastfeeding may have been solved Researchers have discovered a hormone in mice that prevents bone loss during lactation and could one day be used to treat osteoporosis News
HealthExtreme exercise may help you live longer without stressing your heart People who can run a mile in less than 4 minutes generally live almost five years longer than would otherwise be expected, challenging the idea that too much strenuous exercise is bad for the heart News